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UPSTREAM: bpf: net: Refactor bpf_iter target registration

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Currently bpf_iter_reg_target takes parameters from target
and allocates memory to save them. This is really not
necessary, esp. in the future we may grow information
passed from targets to bpf_iter manager.

The patch refactors the code so target reg_info
becomes static and bpf_iter manager can just take
a reference to it.

Change-Id: Ib9eb1c718ac5066304a775986f499c2db4109c44
Signed-off-by: Yonghong Song <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
This commit is contained in:
Yonghong Song 2020-05-13 11:02:19 -07:00 • committed by basamaryan
commit ba0998fc06
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6 changed files with 61 additions and 61 deletions
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18
net/ipv6/route.c
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@ -6411,17 +6411,17 @@ void __init ip6_route_init_special_entries(void)
#if defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_PROC_FS)
DEFINE_BPF_ITER_FUNC(ipv6_route, struct bpf_iter_meta *meta, struct fib6_info *rt)
static const struct bpf_iter_reg ipv6_route_reg_info = {
.target = "ipv6_route",
.seq_ops = &ipv6_route_seq_ops,
.init_seq_private = bpf_iter_init_seq_net,
.fini_seq_private = bpf_iter_fini_seq_net,
.seq_priv_size = sizeof(struct ipv6_route_iter),
};
static int __init bpf_iter_register(void)
{
struct bpf_iter_reg reg_info = {
.target = "ipv6_route",
.seq_ops = &ipv6_route_seq_ops,
.init_seq_private = bpf_iter_init_seq_net,
.fini_seq_private = bpf_iter_fini_seq_net,
.seq_priv_size = sizeof(struct ipv6_route_iter),
};
return bpf_iter_reg_target(&reg_info);
return bpf_iter_reg_target(&ipv6_route_reg_info);
}
static void bpf_iter_unregister(void)